US 12,076,963 B2
Packaging material; and a sealing system for such packaging material
Giovanni Betti Beneventi, Modena (IT); Pär Bierlein, Dalby (SE); Gloria Guidetti, Bologna (IT); Michael Wamsler, Dalby (SE); and Ladislav Hurdalek, Mladé Buky (CZ)
Assigned to TETRA LAVAL HOLDINGS & FINANCE S.A., Pully (CH)
Appl. No. 17/623,760
Filed by TETRA LAVAL HOLDINGS & FINANCE S.A., Pully (CH)
PCT Filed Jul. 8, 2020, PCT No. PCT/EP2020/069276
§ 371(c)(1), (2) Date Dec. 29, 2021,
PCT Pub. No. WO2021/005120, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 19185032 (EP), filed on Jul. 8, 2019.
Prior Publication US 2022/0258459 A1, Aug. 18, 2022
Int. Cl. B32B 27/10 (2006.01); B31B 50/66 (2017.01); B32B 5/16 (2006.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); B32B 29/00 (2006.01); B65D 5/06 (2006.01); B65D 65/40 (2006.01)
CPC B32B 27/10 (2013.01) [B31B 50/66 (2017.08); B32B 5/16 (2013.01); B32B 9/007 (2013.01); B32B 9/045 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 29/002 (2013.01); B65D 5/064 (2013.01); B65D 65/40 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2264/108 (2013.01); B32B 2307/31 (2013.01); B32B 2307/732 (2013.01); B32B 2439/40 (2013.01); B32B 2439/70 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A packaging material that does not include aluminum and that comprises a core layer and at least one layer of a heat sealable material laminated thereto, and at least one carbon-based layer or portion adjacent the layer of heat sealable material and configured to form a workpiece of an associated sealing system, which workpiece generates heat by interaction with an electromagnetic field such that the heat at least partly melts at least a portion of the adjacent layer of heat sealable material so that the packaging material is formable into a filled and sealed packaging container, the at least one carbon-based layer or portion being a graphene-based material comprising one or more materials selected from the group consisting of exfoliated flakes of graphene, reduced graphene oxide, graphene monolayer material and multilayer graphene platelets, having up to 20 stacked monolayer flakes of graphene.